TY  - JOUR
AU  - Ikeno, N.
AU  - Liang, W. H.
AU  - Oset, E.
PY  - 2024
DA  - 2024//
TI  - Molecular nature of the Ωc(3120) and its analogy with the Ω(2012)
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 054023
EP  - 7pp
VL  - 109
IS  - 5
PB  - Amer Physical Soc
AB  - We make a study of the omega c(3120) , one of the five omega c states observed by the LHCb Collaboration, which is well reproduced as a molecular state from the Xi*cK over bar and omega*c17 channels mostly. The state with JP = 3/2- decays to Xi cK over bar in the D wave, and we include this decay channel in our approach, as well as the effect of the Xi*c width. With all these ingredients, we determine the fraction of the omega c(3120) width that goes into Xi cK over bar K , which could be a measure of the Xi*cK over bar molecular component, but due to a relatively big binding, compared to its analogous omega(2012) state, we find only a small fraction of about 3%, which makes this measurement difficult with present statistics. As an alternative, we evaluate the scattering length and effective range of the Xi*c K over bar and omega*c17 channels, which, together with the binding and width of the omega c(3120) state, could give us an answer to the issue of the compositeness of this state when these magnitudes are determined experimentally, something feasible nowadays, for instance, measuring correlation functions.
SN  - 2470-0010
UR  - https://arxiv.org/abs/2312.13732
UR  - https://doi.org/10.1103/PhysRevD.109.054023
DO  - 10.1103/PhysRevD.109.054023
LA  - English
N1  - WOS:001195439400003
ID  - Ikeno_etal2024
ER  -